World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
41
Citations
4670
World Ranking
1122
National Ranking
332

Overview

John Killefer is affiliated with South Dakota State University in the United States. Their academic work is associated with this institution, indicating an involvement in research and teaching activities within this university's environment.

There are no records of recent papers, co-authors, publication venues, or specific fields and subfields of study linked to John Killefer in the provided data. Likewise, there is no information available on book publications or awards received by this researcher.

Without data on publications or research topics, it is not possible to detail the scientific focus areas or thematic concentrations of their work. The absence of listed papers and documented collaborations suggests either limited public documentation or a specialization in areas outside the indexed reach of this dataset.

The profile reflects the available factual data without assumptions about their research interests or academic contributions beyond their primary affiliation.

Best Publications

  • Thirty-five polymorphic microsatellite markers for rainbow trout (Oncorhynchus mykiss).

    C. E. Rexroad;R. L. Coleman;A. M. Martin;W. K. Hershberger

  • Effects of different cereal grains and ractopamine hydrochloride on performance, carcass characteristics, and fat quality in late-finishing pigs

    S. N. Carr;P. J. Rincker;J. Killefer;D. H. Baker

  • Effect of antioxidant inclusion and oil quality on broiler performance, meat quality, and lipid oxidation

    M.A. Tavárez;D.D. Boler;K.N. Bess;J. Zhao

  • Effect of Distillers Dried Grains With Solubles and Ractopamine (Paylean) on Quality and Shelf-Life of Fresh Pork and Bacon

    C. M. Leick;C. L. Puls;M. Ellis;J. Killefer

  • The effects of high pressure processing on pork quality, palatability, and further processed products

    C.M. Souza;D.D. Boler;D.L. Clark;L.W. Kutzler

  • The effects of ractopamine hydrochloride on lean carcass yields and pork quality characteristics.

    S. N. Carr;D. J. Ivers;D. B. Anderson;D. J. Jones

  • Bovine skeletal muscle calpastatin: cloning, sequence analysis, and steady-state mRNA expression.

    John Killefer;Mohammad Koohmaraie

  • Comparative effects of ractopamine hydrochloride and zilpaterol hydrochloride on growth performance, carcass traits, and longissimus tenderness of finishing steers.

    S. M. Scramlin;W. J. Platter;R. A. Gomez;W. T. Choat

  • Intramuscular fat content has little influence on the eating quality of fresh pork loin chops.

    P. J. Rincker;J. Killefer;M. Ellis;M. S. Brewer

  • Identification and molecular characterization of the rainbow trout calpains (Capn1 and Capn2): their expression in muscle wasting during starvation

    Mohamed Salem;Joginder Nath;Caird E. Rexroad;John Killefer

  • Development of Rainbow Trout Microsatellite Markers from Repeat Enriched Libraries

    C.E. Rexroad;R.L. Coleman;A.L. Gustafson;W.K. Hershberger

  • The effect of pH on shelf-life of pork during aging and simulated retail display

    S. F. Holmer;R. O. McKeith;Dustin Dee Boler;Anna Carol Dilger

  • Effects of oxidized corn oil and a synthetic antioxidant blend on performance, oxidative status of tissues, and fresh meat quality in finishing barrows.

    D. D. Boler;D. M. Fernández-Dueñas;L. W. Kutzler;J. Zhao

  • Effects of increasing lysine on carcass composition and cutting yields of immunologically castrated male pigs

    D. D. Boler;L. W. Kutzler;D. M. Meeuwse;V. L. King

  • Temporal expression of growth factor genes during myogenesis of satellite cells derived from the biceps femoris and pectoralis major muscles of the chicken.

    Hakan Kocamis;Douglas C. McFarland;John Killefer

  • Effect of ractopamine hydrochloride (Optaflexx) dose on live animal performance, carcass characteristics and tenderness in early weaned beef steers.

    D.D. Boler;A.L. Shreck;A.L. Shreck;D.B. Faulkner;J. Killefer;J. Killefer

  • Prion biology relevant to bovine spongiform encephalopathy

    J. Novakofski;M. S. Brewer;N. Mateus-Pinilla;J. Killefer

  • Effects of multiple concurrent stressors on rectal temperature, blood acid-base status, and longissimus muscle glycolytic potential in market-weight pigs.

    M. J. Ritter;M. Ellis;D. B. Anderson;S. E. Curtis

  • ULTIMATE pH EXPLAINS VARIATION IN PORK QUALITY TRAITS

    Dustin Dee Boler;Anna Carol Dilger;B. S. Bidner;S. N. Carr

  • The effect of ractopamine hydrochloride (Paylean®) on lean carcass yields and pork quality characteristics of heavy pigs fed normal and amino acid fortified diets.

    S. N. Carr;D. N. Hamilton;K. D. Miller;A. L. Schroeder

  • Effects of immunological castration (Improvest) on changes in dressing percentage and carcass characteristics of finishing pigs

    D. D. Boler;C. L. Puls;D. L. Clark;M. Ellis

  • Carcass, meat quality, and sensory characteristics of heavy body weight pigs fed ractopamine hydrochloride (Paylean)

    D. M. Fernández-Dueñas;A. J. Myers;S. M. Scramlin;C. W. Parks

  • In ovo administration of recombinant human insulin-like growth factor-I alters postnatal growth and development of the broiler chicken.

    H Kocamis;D C Kirkpatrick-Keller;H Klandorf;J Killefer

  • Effects of slaughter time post-second injection on carcass cutting yields and bacon characteristics of immunologically castrated male pigs.

    D. D. Boler;J. Killefer;D. M. Meeuwse;V. L. King

Frequent Co-Authors

Floyd K. Mckeith
Floyd K. Mckeith University of Illinois at Urbana-Champaign
Michael Ellis
Michael Ellis University of Illinois at Urbana-Champaign
W. T. Nichols
W. T. Nichols MSD (United States)
D. A. Yates
D. A. Yates University of Nebraska–Lincoln
J.C. Brooks
J.C. Brooks Texas Tech University
Melvin C. Hunt
Melvin C. Hunt Kansas State University
Michael E. Dikeman
Michael E. Dikeman Kansas State University
Caird E. Rexroad
Caird E. Rexroad Agricultural Research Service
Jianbo Yao
Jianbo Yao West Virginia University
J. W. Savell
J. W. Savell Texas A&M University

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Related Online Degrees & Career Pathways

For those interested in expanding their expertise beyond Animal Science and Veterinary studies, several related online degrees offer exciting career opportunities. Pursuing an online doctorate in counseling can be a valuable option for professionals seeking to support animal owners and communities through therapeutic services.

If your passion lies in working directly with animals, exploring careers with animals that pay well is essential. These paths often require specialized knowledge and can lead to rewarding jobs in wildlife management, zoology, or veterinary technology.

Additionally, animal science graduates may consider leadership roles in education and athletics. Learning how to become a high school athletic director can open doors to managing sports programs, where expertise in exercise and animal physiology may be surprisingly relevant.

For those keen on the fitness and health aspect, online exercise science programs provide flexible options to deepen knowledge in biomechanics and physical health, complementing careers related to animal rehabilitation and performance.

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